Low level graphics API prerequisites (#319)

* Add GalPipelineState and IGalPipeline

* Separate UploadVertex call

* Add ConstBuffer cache

* Move Vertex Assembly into GalPipelineState

* Move Uniform binds to GalPipelineState

* Move framebuffer flip into a buffer

* Rebase

* Fix regression

* Move clear values from VertexEndGl to ClearBuffers

* Rename obscure names O->Old S->New

Ryujinx.Graphics/Gal/OpenGL/OGLRenderer.cs

@@ -5,7 +5,7 @@ namespace Ryujinx.Graphics.Gal.OpenGL
 {
     public class OGLRenderer : IGalRenderer
     {
-        public IGalBlend Blend { get; private set; }
+        public IGalConstBuffer Buffer { get; private set; }
 
         public IGalFrameBuffer FrameBuffer { get; private set; }
 
@@ -13,19 +13,23 @@ namespace Ryujinx.Graphics.Gal.OpenGL
 
         public IGalShader Shader { get; private set; }
 
+        public IGalPipeline Pipeline { get; private set; }
+
         public IGalTexture Texture { get; private set; }
 
         private ConcurrentQueue<Action> ActionsQueue;
 
         public OGLRenderer()
         {
-            Blend = new OGLBlend();
+            Buffer = new OGLConstBuffer();
 
             FrameBuffer = new OGLFrameBuffer();
 
             Rasterizer = new OGLRasterizer();
 
-            Shader = new OGLShader();
+            Shader = new OGLShader(Buffer as OGLConstBuffer);
+
+            Pipeline = new OGLPipeline(Buffer as OGLConstBuffer, Rasterizer as OGLRasterizer, Shader as OGLShader);
 
             Texture = new OGLTexture();